Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (grants #307034/2015-1, #307024/2015-6 and #402158/2016-4)
Text and Data Mining valid from 2018-12-11
Received: 14 August 2018
Accepted: 5 December 2018
First Online: 11 December 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interests.
: All procedures performed in the present study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.